- Mathematical:
- Automatic extraction of printed mathematical formulas
- Automated Segmentation of Math-zones from document images
- Wolfram mathworld
- Textual
- Textual similarity based on Proper names
- Computing textual semantic similarity by combining multiple content similarity measures
- SimRank: A Measure of Structural-Context Similarity
- Pictorial:
- involves a picture such as a graph
Thoughts
- Mathmematical: when designing the application, make use of the worlfram mathworld api to judge the correctness of the submitted answer.
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